Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 562 · 40 questions

What you do (Shadows point away from the Sun): 1. Stand the stick upright in the ground in an open sunny place. 2. Every hour, mark the tip of the shadow with chalk and write the time. 3. Measure the length of each shadow. 4. Wear a cap and never look straight at the Sun.

1. 1.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a sunny open place (b) a straight stick (c) a clock to check (d) a battery cell
2. 2.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the stick kept upright is kept the same. (a) False (b) True
3. 3.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same stick is kept the same. (a) False (b) True
4. 4.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the same stick”? (a) we keep it the same (b) we measure it (c) we change it
5. 5.True or false: a battery cell is needed for the shadow clock. (a) False (b) True
6. 6.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) chalk to mark shadows (c) yeast (d) a straight stick
7. 7.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same stick is the one thing we change. (a) False (b) True
8. 8.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is what we measure? (a) the same spot (b) shadow length (c) the same stick (d) the time of day
9. 9.True or false: frosted glass is translucent. (a) True (b) False
10. 10.True or false: a sunny open place is not needed for the shadow clock. (a) True (b) False
11. 11.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is the one thing we change? (a) shadow length (b) the same stick (c) the time of day (d) the same spot
12. 12.🧺 Which of these is needed for the shadow clock? (a) chalk to mark shadows (b) a magnet (c) a battery cell (d) yeast
13. 13.🔍 Which is the odd one out? (a) a book (b) a wooden board (c) clean water (d) your hand
14. 14.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the same spot”? (a) we change it (b) we keep it the same (c) we measure it
15. 15.🔦 Which of these is transparent? (a) your hand (b) tissue paper (c) air (d) a book
16. 16.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) a clock to check (c) a mirror (d) chalk to mark shadows
17. 17.🔍 Which is the odd one out? (a) oily paper (b) clear glass (c) butter paper (d) frosted glass
18. 18.🔦 Is frosted glass opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
19. 19.🕰️ What is a sundial used for? (a) making rainbows (b) measuring rain (c) weighing things (d) telling the time
20. 20.🔮 Predict: on a fully cloudy day, the sundial ___. (a) runs faster (b) works better (c) shows two times (d) does not work well
21. 21.🔦 Is a book opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
22. 22.🧺 Do we need a clock to check for the shadow clock? (a) not needed (b) needed
23. 23.True or false: clean water is opaque. (a) True (b) False
24. 24.🧺 Which of these is not needed for the shadow clock? (a) a sunny open place (b) chalk to mark shadows (c) a battery cell (d) a straight stick
25. 25.True or false: a mirror is not needed for the shadow clock. (a) False (b) True
26. 26.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is kept the same? (a) shadow length (b) the time of day (c) the same spot
27. 27.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the stick kept upright is what we measure. (a) True (b) False
28. 28.🔦 Which of these is opaque? (a) clear plastic film (b) tissue paper (c) air (d) a book
29. 29.🧺 Which of these is not needed for the shadow clock? (a) a mirror (b) chalk to mark shadows (c) a straight stick (d) a sunny open place
30. 30.🌞 When is a stick’s shadow the shortest? (a) around noon (b) at night (c) late evening (d) early morning
31. 31.True or false: a sunny open place is needed for the shadow clock. (a) False (b) True
32. 32.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the stick kept upright”? (a) we measure it (b) we keep it the same (c) we change it
33. 33.True or false: a straight stick is needed for the shadow clock. (a) False (b) True
34. 34.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the time of day is the one thing we change. (a) False (b) True
35. 35.🧺 Do we need turmeric powder for the shadow clock? (a) needed (b) not needed
36. 36.🔦 Is butter paper opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
37. 37.True or false: frosted glass is transparent. (a) True (b) False
38. 38.True or false: yeast is not needed for the shadow clock. (a) True (b) False
39. 39.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) coloured (b) smaller (c) brighter (d) bigger
40. 40.🔦 Is a steel plate opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent

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